Based on this product's specifications, here are some alternatives and similar models
Check valve kfa² 192-010-32 cast iron 5/4" (non-return valve)
Summary description:
Cast iron check valve kfa² model 192-010-32 with 5/4" connection. Designed as a non-return valve to prevent backflow in liquid piping systems. Suitable for plumbing and heating installations where a durable cast iron body and standard threaded 5/4" connection are required. Used to maintain flow direction and protect pumps and equipment from reverse flow.